The Mountain Club of Maryland conducts hikes, overnight and camping trips and maintains trails.

Sat., June 29, Loch Raven Reservoir: This is a fast-paced, 8-mile. Plenty of views of the beautiful reservoir. Some rocky hills. 410-299-8833.Sun., June 30, Patapsco Valley State Park: This is a 8-mile hike on multiple trails, combining several hills with fairly level hiking. 410-744-6057.